Under a number of simplifying assumptions, the steady-state height of the water table in a one-dimensional, unconfined g

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Under a number of simplifying assumptions, the
steady-state height of the water table in a one-dimensional,
unconfined groundwater aquifer (see figure) can be modeled with the
following second-order ODE,
Khbar (d^2h/ dx^2) + N =0
where x = distance (m), K = hydraulic conductivity
(m/d), h = height of the water table (m), h= the average height of
the water table (m), and N = infiltration rate (m/day or
m/d).
Solve for the height of the water table for x = 0 to
1000 m where h(0) = 10 m and h(1000) = 5 m. Use the following
parameters for the calculation: K = 1 m/d and N = 0.0001 m/d. Set
the average height of the water table as the average of the
boundary conditions. Obtain your solution with the implicit method
(x = 100 m).
Need help setting up a numerical method showing the
equations to be implemented in Matlab.